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["重 Boiler Thermal Exchange

2019-08-28View Original

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A geral do fluxo deion器入重沸器与出口出口 retorno é apenas alguns graus度1。比如说进重沸器的是117度,重沸器返塔是118度。但是我这里有个重沸器入口温度是 de11118度,返塔高的时候到 de1 do1116度。塔底设计温度是 de1 do117度,但是怎么升温也升不到,塔压力也是按照设计压力来控制的,并且这个重沸器的蒸汽减温减压器压力不好控制,一会高一会低,好的时候到 de do do113兆帕,导致安全阀起跳。怎么关蒸汽调节阀,蒸汽压力也不降。但是有时忽然压力就降了,一直降到 de do do do1113兆帕甚至更低。然后压力还会自己非常缓慢地涨到跳安全阀。哪位大神能帮忙分析一下呢。
Reply #22019-08-31
Analise específica para problema específico的问题具体分析吧,你这么说的太笼统了,不好判断原因
Reply #32019-09-01
Baseando-se seu relato, Analise possíveis causas:一、塔底组成与设计偏差大,过多的的轻组分造成塔底温度较设计温度低。二、蒸汽压力波动大,可能由于换热器负荷波动大造成的,当温度串级凝液排放量控制时,温度高造成凝液阀门关闭,换热器内压力升高。三、还有一种原因就是换热器结严重,换热效果差,换热器蒸汽侧压力高,造成安全阀起跳。具体问题具体分析,您这个描述实在没有画面,方便的话附上流程图更好说明问题
Reply #42019-09-02
Deveem controlar a pressão do todo o condensador de vapor后首先才能评估压力波动有几个因素 一、塔底蒸汽波动(包含温度/压力) 二、入料来源的组成变化大(最重要为轻沸液组成) 三、塔顶的冷回流流量是否波动 四、塔顶的压力排放是否稳定(包含管线是否阻塞) 五、塔塔填料是否有阻塞(有阻塞情况下塔底压力要足够高才能让气体往上通过造成塔顶压力瞬间太高) 六、塔底热交换器阻塞...逻辑上热交换效率下降...塔底温度应该达到理想的操作温度
Reply #52019-09-02
压力控制稳定,出口温度高,说明气化率太高了,提高循环量试试?压控制稳定,出口温度高,说明气化率太高了,提高循环量试试?

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